Masamba a masamba ozungulira

Kufotokozera kwazonse

Ndife akatswiri opanga ma tungsten carbide saw nsonga kuyambira 2013. Tili ndi makulidwe athunthu ndi mafotokozedwe a tsamba lozungulira la macheka a bandi.

Kwa maupangiri a tsamba lozungulira, tili ndi kalembedwe ka JE JX ndi kalembedwe ka JP, kalembedwe ka JE ndi kalembedwe ka JX ndi kadulira matabwa, kalasi: XK,SM, XF. JP kalembedwe ndi kudula zitsulo, kalasi: XP mndandanda, ngati XP30 XP35 ndi XP45.